Chuck.



1. RMUSSELMAN.

CHUCK.

APPLICATION FILED MAY 7 2912. REHEWED LUNE 14, i915.

Paene Jan. 18, 1916.

shank, it is advantageous to provide two Figs. 7 and 8, wherein 26 designates a handle provided with a metallic socket member 28 having a cylindrical socket or recess 29 for receiving the cylindrical stock or shank 30 of a tool. A n outer member 32 extends around said socket member and is secured yto the handle 26 by a.l pin 33.' Said outer member is slotted at one side for passage of av handle member 35 which lis screwedV to a slide member 36 for controlling the position of the clutch ball 37, said. clutch ball engaging with the side of the tool shank 30 and with an incline portion 38 on the outer4 member 32 to grip the tool shank when the same is pulled outwardly, but to Aallow the tool shank to b e pushed inwardly.

The operation of this form of the invention is similar to that above described, the tool beinginserted by simply pushing it into the socket and being then gripped by the clutchingdevice 37 and the tool being released by pushing up the handle member-A35 ni 29th day of April, 1912.

so as to move the clutch device away from the outer end of the tool holder.

What I'claim is:

1. A chuck comprising a tool socket the wall of which is provi with a longitudinal slot; and' astralght lonbody\having a i' gitudinal outer surface surrounding said slot; an outer shell ysecured to inclosetlie A socketed part of said body, andV provided operable from the exterior of theA shell for positively moving the gripping member longitudinally within the slot.

2. A chuck comprising a main body hav` ing a socket non-circular in cross section adapted to receive and positively rotate the shank of a tool, said socketed member having a longitudinally extending slot opening into the tool engaging wall of the socket, and a straight longitudinal outer surface; an outer sleeve inclosing said main body and provided internally with an inwardly tapered or inclined wall; a gripping member mounted to move in said slot; a slide interposed betweenv the outer sleeve and socketed part of the main body; means en gaging and guided by said straight surface and positively engaging said gripping member to move the latter in its slot; a coiled 'spring surrounding the socketed portion of the main body and operatively engaging the slide; an outer ring movably mounted upon the sleeve; and operative connections between said ring and slide. v

'In testimony whereof, I have hereunto set y hand at Los Angeles, California, this JOHN F. MUSSELMAN.

In presence of ARTHUR P. KNIGHT, MARTHA M. LANGE. 

